Supporting-shelf.



J. A. McDONALD.

SUPPORTING SHELF.

APPLICATION FILED DEC. 20, 1913 1 1 1 6,09 1 Patented NOV, 3, 1914.

vii?

Shumlioa Gi 100mm,

/ w: Gum,

UNITED STATES PATENT OFFICE.

JOHN A. MoDONAlLI), 0F MOSTYN, TEXAS.

SUPPORTING-SHELF.

To all whom it may concern Be it known that I, JOHN A. MCDONALD, acitizen of the United States, residing at Mostyn, in the county ofMontgomery and State of Texas, have invented new and useful Improvementsin Supporting-Shelves, or which the following is a specification.

This invention relates to supporting shelves and particularly to acombined leveling and supporting shelf for clocks; and it has for itsprimary object the provision of means whereby the shelf may be adjustedso that the clock may be properly balanced.

With the above and other objects in view, the invention consists ofcertain novel features of construction, combination and arrangement ofparts, as will be hereinafter described and claimed.

In the accompanying drawings :-Figure 1 is a perspective view of theshelf; Fig. 2 is a horizontal section, taken on the line 2-2 of Fig. 1;and Fig. 3 is a section, taken on the line 3-3 of Flg. 1.

The shelf comprises a pair of supporting brackets 1-1 each consisting ofa vertical attaching plate 2, which may be secured to the wall by meansof suitable fastenings 3. Said plate is provided with a pair of guides 3having undercut edges 4 that overlap similar undercut edges 5 formed onthe sides of a vertically adjustable plate 6.

Cross bars 7 connect the guides 3 with each other, and as shown saidbars extend transversely over the forward surface of the plate 6 wherebyto strengthen the latter and prevent the same from pulling away from theguides. The lower end of the attaching plate 2 is provided with a pairof vertical alined lugs 8 having threaded passages 9, which accommodatea correspondingly threaded adjusting screw 10. This screw is extended atits upper ends between the guides 3, and as shown the extremity of thescrew engages at 1.1 against the lower edge of the plate 6 so that thelatter may be moved in a vertical direction on rotation of said screw.The screw is provided with a suitable manipulating head or knob 12 atits lower end which is extended below the lower end of the plate 2whereby the screw may be freely operated by the hand.

Specification of Letters Patent.

Application filed December 20, 1913.

Patented Nov. 3, 1914.

Serial No. 807,985. a

The plate 6 is hingedly connected at 13 with a horizontal plate 14, andas shown the latter is connected with said plate 6 by a turn-buckle 15.The section 16 of the turnbuckle is operatively connected at 17 with theplate 14., while the section 18 of said turn buckle is operativelyconnected at 19 with the plate 6. The meeting ends of the sections 16and 18 are connected by a suitable adjustin nut 20 which may be turnedby the hen so as to cause a relative separation of the sections 16 and18 and effect different angular adjustments of the plate 14 relativelyof the plate 6. The plates 14 of the companion brackets 1-1 areconnected together by a support 21 having lugs 22, which are freelyfitted in relatively large openings 23 in the plates 1 1. The support 21is respectively provided along its edges 24 and 25 with spirit levels 26and 27 of any suitable well known form.

From the construction herein set forth, it is obviously seen that aclock may be mounted upon the support 21 and the adjusting means 10 and15 operated so that the support 21 will be level and operativelybalanced and set up to the moving parts of the clock.

From the fore oing description, taken in connection with t eaccompanying drawings, the construction and operation of the inven tionwill be readily understood without requiring a more extendedexplanation.

Various changes in the form, proportion and the minor details ofconstruction may be resorted to without departing from the principle orsacrificing any of the advantages of this invention as claimed.

I claim A device of the character described comprising an attachingplate, a member movably mounted in said plate, means on the plate formoving the member, a support hingedly connected with the member, andmeans between the support and the member for moving the former.

In testimony whereof I affix my signature in presence of two witnesses.

JOHN A. MCDONALD.

Witnesses:

HERBERT DECKER, D. O. BENDER.

